UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025120412.upa.cvt Date: 1200Z 4 DEC 25 Searching for X8341... Searching the city database file for: X8341 ... Date:1200Z 4 DEC 25 Station: X8341 WMO ident: 38341 Latitude: 42.85 Longitude: 71.38 ------------------------------------------------------------------------------- LEV PRES HGHT TEMP DEWP RH DD WETB DIR SPD THETA THE-V THE-W THE-E W mb m C C % C C deg knt K K K K g/kg ------------------------------------------------------------------------------- 0 1000 199 SFC 947 650 9.0 -2.0 46 11.0 4.1 295 1 286.6 287.2 279.8 296.6 3.48 2 925 845 8.4 -3.6 43 12.0 3.2 260 1 287.9 288.5 280.0 297.1 3.16 3 914 944 8.4 -4.6 39 13.0 2.9 259 2 288.9 289.4 280.3 297.6 2.97 4 850 1537 3.8 -10.2 35 14.0 -1.3 250 5 290.1 290.5 279.7 296.3 2.07 5 825 1778 1.6 -11.4 37 13.0 -3.0 248 8 290.3 290.6 279.6 296.1 1.94 6 736 2685 -6.5 -7.7 91 1.2 -7.0 243 21 291.1 291.6 281.2 299.7 2.91 7 720 2857 -4.9 -5.8 93 0.9 -5.3 241 24 294.7 295.3 283.4 304.9 3.44 8 704 3033 -5.7 -6.7 93 1.0 -6.1 240 26 295.7 296.3 283.6 305.5 3.29 9 700 3078 -6.1 -7.1 93 1.0 -6.5 240 27 295.7 296.3 283.5 305.3 3.20 10 500 5620 -24.3 -24.3 100 0.0 -24.3 245 38 303.4 303.6 284.1 306.9 1.07 11 400 7200 -37.5 -38.7 88 1.2 -37.6 240 50 306.3 306.3 284.4 307.4 0.34 12 390 7374 -38.7 -40.0 87 1.3 -38.8 240 51 306.9 307.0 284.5 308.0 0.30 13 300 9130 -51.1 -54.1 70 3.0 -51.2 245 58 313.3 313.3 286.6 313.6 0.08 14 275 9689 -55.9 -59.4 65 3.5 -56.0 245 60 314.3 314.3 286.9 314.5 0.05 15 250 10290 -59.3 -63.3 60 4.0 -59.3 245 62 317.9 317.9 288.1 318.0 0.03 16 230 10807 -62.3 -66.4 58 4.1 -62.3 245 58 321.0 321.0 289.1 321.1 0.02 17 214 11252 -61.7 -65.6 59 3.9 -61.7 245 66 328.7 328.7 291.3 328.8 0.03 18 200 11670 -61.1 -64.9 61 3.8 -61.2 255 52 336.0 336.0 293.3 336.1 0.03 19 150 13470 -58.9 -62.7 61 3.8 -59.0 245 40 368.6 368.6 300.4 368.9 0.06 20 143 13771 -57.9 -61.7 62 3.8 -58.0 246 40 375.4 375.4 301.5 375.7 0.07 21 100 16010 -61.5 -66.5 51 5.0 -61.6 255 42 408.9 408.9 306.4 409.2 0.05 22 80 17379 -65.9 -71.9 43 6.0 -66.0 258 43 426.8 426.8 308.5 426.9 0.03 23 70 18190 -65.7 -72.7 37 7.0 -65.8 260 44 443.8 443.8 310.3 444.0 0.03 24 50 20230 -66.7 -76.7 23 10.0 -66.9 270 50 486.3 486.3 314.0 486.4 0.02 25 37 22055 -65.3 -77.3 17 12.0 -65.6 261 40 533.6 533.6 317.2 533.8 0.03 26 33 22744 -69.9 -82.9 13 13.0 -70.1 258 36 539.2 539.2 317.5 539.3 0.01 27 30 23310 -70.3 -85.3 9 15.0 -70.5 255 33 553.0 553.0 318.3 553.0 0.01 28 20 25710 -71.7 -97.7 1 26.0 -72.0 270 52 616.7 616.7 321.3 616.7 0.00 29 19 26013 -71.7 -97.7 1 26.0 -72.0 625.8 625.8 321.7 625.8 0.00 TRP 230 10807 -62.3 -66.4 58 4.1 -62.3 245 58 321.0 321.0 289.1 321.1 0.02 WND 214 11252 -61.7 -65.6 59 3.9 -61.7 245 66 328.7 328.7 291.3 328.8 0.03 Sounding variables and indices 1000-500 mb thick: 5421.00 m Freezing level: 807.42 mb = 1957.44 m = 6421.98 ft Wetbulb zero: 870.14 mb = 1345.54 m = 4414.43 ft Precipitable water: 0.47 inches Sfc-500 mean rel hum: 77.82 % Est. max temperature: 12.92 C = 55.25 F Sfc-Lift cond lev (LCL): 800.16 mb = 2021.16 m = 6631.03 ft T: -0.57 C 700-500 lapse rate: 7.16 C/km ThetaE index: 1.46 C Layer 850.0- 736.0 mb Conv cond level (CCL): 650.20 mb = 3635.60 m = 11927.69 ft Mean mixing ratio: 2.73 g/kg Conv temperature: 19.77 C = 67.59 F Cap Strength: 5.24 C Lifted Index: 6.85 C Risk: None Lifted Index @300 mb: 11.69 C Lifted Index @700 mb: 5.13 C Showalter Index: 7.26 C Risk: None Total Totals Index: 42.20 C Risk: None Vertical Totals Index: 28.10 C Cross Totals Index: 14.10 C K Index: 16.90 Risk: < 20 % chance of thunderstorms Sweat Index: 48.00 Risk: None Energy Index: 2.18 Risk: None Parcel Indices Parcel: using 100 mb layer CAPE (B+): 13.04 J/kg Max Up Vert Vel: 5.11 m/s Conv Inhibition (B-): 39900.24 J/kg Cap Strength: 6.72 C Lift Cond Lev (LCL): 735.31 mb = 2691.92 m = 8831.64 ft Lev Free Conv (LFC): -1.00 mb = -9999.00 m = -9999.00 ft Wind level data Storm motion: 273 at 19 knt ---------------------------------------------------------- TRUE/GROUND REL | STORM REL LEV P H DIR SPD U V | DIR SPD U V mb m knt m/s | knt m/s ---------------------------------------------------------- 0 947 650 295 1 0.9 -0.4 | 92 19 -18.5 0.6 1 925 845 260 1 1.0 0.2 | 94 18 -18.4 1.2 2 850 1537 250 5 4.7 1.7 | 100 15 -14.7 2.7 3 700 3078 240 27 23.4 13.5 | 195 15 4.0 14.5 4 500 5620 245 38 34.4 16.1 | 221 23 15.0 17.1 5 400 7200 240 50 43.3 25.0 | 223 35 23.9 26.0 6 300 9130 245 58 52.6 24.5 | 232 42 33.2 25.5 7 250 10290 245 62 56.2 26.2 | 234 46 36.8 27.2 8 230 10807 245 58 52.6 24.5 | 232 42 33.2 25.5 9 214 11252 245 66 59.8 27.9 | 234 50 40.4 28.9 10 200 11670 255 52 50.2 13.5 | 245 34 30.8 14.5 11 150 13470 245 40 36.3 16.9 | 223 25 16.8 17.9 12 100 16010 255 42 40.6 10.9 | 241 24 21.2 11.9 13 70 18190 260 44 43.3 7.6 | 250 25 23.9 8.6 14 50 20230 270 50 50.0 -0.0 | 268 31 30.6 1.0 15 30 23310 255 33 31.9 8.5 | 233 16 12.5 9.5 16 20 25710 270 52 52.0 -0.0 | 268 33 32.6 1.0 Wind Parameters Mean winds (0-6000m): 242.9 at 25.9 knts Storm direction: 272.9 at 19.4 knts Shear (0-3000m) pos: 0.4 neg: 4.6 tot: 5.0 10-3/s Storm rel Dir Shear (0-3000m): 111.0 deg Storm rel helicity (0-3000m) pos: 71.7 neg: 0.0 tot: 71.7 m^2/s^2 ave: 23.9 10^-3 m/s^2 rel: 0.76 Storm rel vorticity (0-3000m) horiz: 5.0 stream: 3.8 10^-3/s Energy-Hel index: 0.00 Bulk Rich Number: 0.16 Bulk Shear: 79.22 m/s Storm Parameters ------------------------------------------------------------------------------- Depth Mean Inflow| Shear | Helicity | Vorticity AGL Dir Spd Dir Spd| Pos Neg Tot| Pos Neg Tot Ave Rel | Hor Strm m knt knt| 10^-3/s | m^2/s^2 m/s^2 | 10^-3/s ------------------------------------------------------------------------------- 500 262 2 94 18| 0.0 2.2 2.2| 5.9 0.0 5.9 11.9 0.53| 2.4 1.3 1000 253 3 96 17| 0.0 3.1 3.1| 14.9 0.0 14.9 14.9 0.56| 3.2 1.8 1500 249 5 101 15| 0.0 4.5 4.5| 31.6 0.0 31.6 21.1 0.68| 4.6 3.1 2000 245 8 111 13| 0.0 5.2 5.2| 49.0 0.0 49.0 24.5 0.78| 5.3 4.1 2500 242 12 125 11| 0.0 5.5 5.5| 64.2 0.0 64.2 25.7 0.76| 5.6 4.2 3000 242 14 139 10| 0.4 4.6 5.0| 71.7 0.0 71.7 23.9 0.76| 5.0 3.8 4000 242 19 164 10| 0.9 3.4 4.3| 87.4 0.0 87.4 21.9 0.76| 4.4 3.3 5000 243 23 183 11| 1.2 2.8 3.9|104.1 0.0 104.1 20.8 0.75| 4.0 3.0 6000 243 26 196 13| 1.0 3.0 3.9|107.9 0.0 107.9 18.0 0.63| 4.0 2.5 Wrote GIF file: /home/apache/climate/data/raob//X8341/skewt/X8341.skewt.20251204.12.gif